If some TPMI features are disabled, don't create auxiliary devices. In this way feature drivers will not load. While creating auxiliary devices, call tpmi_read_feature_status() to check feature state and return if the feature is disabled without creating a device. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx> --- drivers/platform/x86/intel/tpmi.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/platform/x86/intel/tpmi.c b/drivers/platform/x86/intel/tpmi.c index c89aa4d14bea..4edaa182db04 100644 --- a/drivers/platform/x86/intel/tpmi.c +++ b/drivers/platform/x86/intel/tpmi.c @@ -604,9 +604,17 @@ static int tpmi_create_device(struct intel_tpmi_info *tpmi_info, struct intel_vsec_device *vsec_dev = tpmi_info->vsec_dev; char feature_id_name[TPMI_FEATURE_NAME_LEN]; struct intel_vsec_device *feature_vsec_dev; + struct tpmi_feature_state feature_state; struct resource *res, *tmp; const char *name; - int i; + int i, ret; + + ret = tpmi_read_feature_status(tpmi_info, pfs->pfs_header.tpmi_id, &feature_state); + if (ret) + return ret; + + if (!feature_state.enabled) + return -EOPNOTSUPP; name = intel_tpmi_name(pfs->pfs_header.tpmi_id); if (!name) -- 2.41.0
